Its been great to get all this feedback and interest. Although I made several prototypes the last set were pretty near to what I wanted -so I thought but they failed in a few areas under evaluation and I have had to start re designing these fail points. Development takes for ever !. In doing so I have run out of both finances and steam to carry the project forward at this time and have shelved the project until I can pull in some other work to make a living and pay my way for a while. Otherwise I will sink financially before the project is ready for sale. I am also looking at an alternative material as Its almost impossible for me to get the costing down on this product and since the change in value of the pound / Euro the material costs on one of the material products (made in Germany has risen by 20%) soon we will also have a rise in VAT to add to that - Like Mickey D told me from the beginning maybe the only way is to go to Asia to make them cost effective - I naively pushed that train of thought aside as it is something I am not willing to do but the reality is that appears the way to make products cheaply, I am still not willing to go that route so am stuck at the moment. So sorry to say do not hold your breath it will be at earliest next year if I get this product gets going and to be honest I am starting to lose the plot a bit with it. I will come back to everyone if and when I make further in roads on the next stage of development, production and costing. Thanks for the encouragement and interest. Jake.